<div dir="ltr"><div>Hello Xinyu,</div><div><br></div><div>Tried the link you gave however see the following error, any idea</div><div><br></div><div>Fetched 256 kB in 18s (13.7 kB/s)<br>Reading package lists... Done<br>W: The repository '<a href="http://ppa.launchpad.net/jconti/gnome3/ubuntu">http://ppa.launchpad.net/jconti/gnome3/ubuntu</a> xenial Release' does not have a Release file.<br>N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.<br>N: See apt-secure(8) manpage for repository creation and user configuration details.<br>E: Failed to fetch <a href="http://ppa.launchpad.net/jconti/gnome3/ubuntu/dists/xenial/main/binary-amd64/Packages">http://ppa.launchpad.net/jconti/gnome3/ubuntu/dists/xenial/main/binary-amd64/Packages</a> 404 Not Found<br>E: Some index files failed to download. They have been ignored, or old ones used instead.<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Jun 14, 2019 at 9:51 AM Xinyu Ma <<a href="mailto:bitmxy@gmail.com">bitmxy@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="overflow-wrap: break-word;">Hello,<div><br></div><div>I’m sorry I’m not sure why you still have this problem.</div><div>Last time I met the same problem, I used this PPA <a href="https://launchpad.net/~jonathonf/+archive/ubuntu/gtk3.22" target="_blank">https://launchpad.net/~jonathonf/+archive/ubuntu/gtk3.22</a> to upgrade gtk-3 to 3.22.30 and it worked.</div><div>Maybe you can have a try.</div><div><br></div><div>Best,</div><div>Xinyu Ma.<br><div><br><blockquote type="cite"><div>On Jun 13, 2019, at 9:15 PM, sofiya kandi <<a href="mailto:starsofwork@gmail.com" target="_blank">starsofwork@gmail.com</a>> wrote:</div><br class="gmail-m_8737563060747783347Apple-interchange-newline"><div><div dir="ltr"><div>Thanks for replying Xinyu.</div><div><br></div><div>I tried ugrading gtk to 3.22.25 however the same error still comes up, kindly let me know if there is any better solution.</div><div><br></div><div>root@sophiya-Gateway-NE46Rs:~/Desktop/ndnSIM/ns-3# pkg-config --modversion gtk+-3.0<br>3.22.25</div><div><br></div><div>root@sophiya-Gateway-NE46Rs:~/Desktop/ndnSIM/ns-3# ./waf --run ndn-simple --vis<br>Waf: Entering directory `/root/Desktop/ndnSIM/ns-3/build'<br>Waf: Leaving directory `/root/Desktop/ndnSIM/ns-3/build'<br>Build commands will be stored in build/compile_commands.json<br>'build' finished successfully (1m31.000s)<br>09:42:12 environ No en_IN translation found for domain kiwi<br>Could not load plugin 'show_last_packets.py': could not import gobject (could not find _PyGObject_API object)<br>Could not load icon applets-screenshooter due to missing gnomedesktop Python module<br>Traceback (most recent call last):<br> File "<string>", line 2, in <module><br> File "/root/Desktop/ndnSIM/ns-3/src/visualizer/visualizer/core.py", line 1881, in start<br> viz = Visualizer()<br> File "/root/Desktop/ndnSIM/ns-3/src/visualizer/visualizer/core.py", line 764, in __init__<br> self.create_gui()<br> File "/root/Desktop/ndnSIM/ns-3/src/visualizer/visualizer/core.py", line 1100, in create_gui<br> monitor = display.get_primary_monitor()<br>AttributeError: 'X11Display' object has no attribute 'get_primary_monitor'<br>root@sophiya-Gateway-NE46Rs:~/Desktop/ndnSIM/ns-3# history</div><div><br></div><div>Thanks</div><div>Sofiya Kandi<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jun 13, 2019 at 9:02 AM Xinyu Ma <<a href="mailto:bitmxy@gmail.com" target="_blank">bitmxy@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hello, Sofiya,<br>
<br>
This is because the version of gtk-3 offered by Ubuntu 16.04 is too old.<br>
You can use an untrusted PPA to install gtk-3.22 if you want to use the visualizer.<br>
<br>
Best,<br>
Xinyu Ma.<br>
<br>
> On Jun 12, 2019, at 7:17 AM, sofiya kandi via ndnSIM <<a href="mailto:ndnsim@lists.cs.ucla.edu" target="_blank">ndnsim@lists.cs.ucla.edu</a>> wrote:<br>
> <br>
> Hello All,<br>
> <br>
> An idea of the solution for the error shown below, am using<br>
> ubuntu 16.04 LTS<br>
> python 3.5.2<br>
> ns-3.29<br>
> all the python packages are installed<br>
> <br>
> 19:17:14 environ No en_IN translation found for domain kiwi<br>
> Could not load plugin 'show_last_packets.py': could not import gobject (could not find _PyGObject_API object)<br>
> Could not load icon applets-screenshooter due to missing gnomedesktop Python module<br>
> Traceback (most recent call last):<br>
> File "<string>", line 2, in <module><br>
> File "/root/Desktop/ndnSIM/ns-3/src/visualizer/visualizer/core.py", line 1881, in start<br>
> viz = Visualizer()<br>
> File "/root/Desktop/ndnSIM/ns-3/src/visualizer/visualizer/core.py", line 764, in __init__<br>
> self.create_gui()<br>
> File "/root/Desktop/ndnSIM/ns-3/src/visualizer/visualizer/core.py", line 1100, in create_gui<br>
> monitor = display.get_primary_monitor()<br>
> AttributeError: 'X11Display' object has no attribute 'get_primary_monitor'<br>
> <br>
> <br>
> Thanks<br>
> Sofiya Kandi<br>
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</blockquote></div>
</div></blockquote></div><br></div></div></blockquote></div>